AIO my girlfriend continues to beg to pop blackheads on my face until I let her do it

My girlfriend constantly is begging me to let her pop blackheads on my face, but I hate it. She is very rough and it's not fun for me at all. She continues to beg and beg and beg until I let her, but it makes me really irritated. She also will tickle me and keep going after I repeatedly say stop. Before y'all say it I know it's "childish" but I hate getting tickled it makes me very uncomfortable. I have to borderline yell at her or threaten to leave her house for her to stop and then she catches an attitude and tries to gaslight me into thinking im the problem and that im ridiculous for not just letting her do it.